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Finding the Fourth Proportional to 83,722.64, 125,632.92 and 31,169.36

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Solution

The fourth proportional to 83,722.64, 125,632.92 and 31,169.36 is: 46,772.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,722.64 : 125,632.92 = 31,169.36 : x
  2. Step 2: Convert to fraction form
    83,722.64/125,632.92 = 31,169.36/x
  3. Step 3: Cross multiply
    83,722.64x = 125,632.92 × 31,169.36
  4. Step 4: Simplify right side
    83,722.64x = 3,915,897,711.33
  5. Step 5: Solve for x
    x = 3,915,897,711.33/83,722.64
  6. Step 6: Final answer
    x = 46,772.27

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